i remember someone asking a while back what the greatest internal energy kungfu ever was. well, it's obviously between these 3 techniques:
1. yik gun ging (or YJJ for those familiar with the acronyms)
i hesitate to throw in YG's internal training with swords and waves, because that's more of a training regimen and less of a specified kungfu manual. correct me if i'm wrong, tho...
9yin definitely shines in the first 2/3rds of the condor trilogy, namely LOCH and ROCH. HSDS is set up for 9yang, while both XAJW (smiling proud wanderer) and DGSD both hold YJJ in high regards. now, i think a lot of us are more familiar with 9yin/yang than we are with YJJ. here are a few words from abbot fangzheng in XAJW about YJJ:
"Fang-Zheng continued, “The Tendon Altering Sutra Kung Fu utilizes all the channels, passages of one’s body and bonds the spirits of the five internal organs. Comprehensive yet does not disperse, cycling through yet incessant. Energy originates from the within, while blood nourishes from the outside. Once the practitioner masters the Tendon Altering Sutra Kung Fu, power can be launched at a change of thought. The assembly and the release become part of a natural course, and complete themselves without conscious commands, just like the rising of the tide or the exploding of the thunder. Young hero, once one masters the Tendon Altering Sutra, it is almost like a small boat floating among gigantic waves of the ocean. When the angry waves surge about, the small boat naturally moves high and low accordingly, never makes an effort. Even if the boat had wanted to make an effort, where would the strength be coming from and where would the strength be used upon?”"
sounds pretty crazy. i remember someone asking me in the YG vs. GJ debate whether someone could have internal energy that could be utilized for ANYTHING, just thrown out there to power any kind of kungfu. by abbot fangzheng's description, YJJ seems to be it. if this is true, then YJJ certainly poses an advantage over 9yang/yin, which is catered to only one side of internal energy.